"Y Ddolen, society newsletter Puget Sound Welsh Association, Seattle. april 2003 " Math Eitemau Uwchlwytho gan Puget Sound Welsh Association
Y Ddolen, society newsletter Puget Sound Welsh Association, Seattle. march 2003 Math Eitemau Uwchlwytho gan Puget Sound Welsh Association
"Y Ddolen, society newsletter Puget Sound Welsh Association, Seattle .june. 2001 " Math Eitemau Uwchlwytho gan Puget Sound Welsh Association
